[TxMt] some shortcut key don't work, and scrolling peculiarities

[Dushan Mitrovich]

I'm using the latest release (v.1631) of TextMate under OS X.6.5 and am 
still experiencing a couple of unexpected problems:

1 - The keyboard shortcut Cmd-Opt-O, which is supposed to toggle between 
Insert and Overwrite modes, does nothing.  I can make that switch by 
going to the menu -- Edit -> Mode -- and clicking on Overwrite Mode, but 
this is inconvenient when I need to make that change often.  I've looked 
at Keyboard Shortcuts under System Preferences to see if there are any 
conflicts, but saw none.  Any ideas what the problem might be?

2 - On a muli-page file the PgUp and PgDn keys have weird behavior: 
instead of scrolling up or down a page at a time, the window jumps all 
over the place.  For example, on a 5-page textfile and starting with the 
window about 4 pages down, hitting PgUp puts the window at about page 2, 
hitting PgUp again puts it at page 3, hitting a third time puts it at 
the start of the file.  This makes no sense to me at all.  OTOH, 
clicking on the scroll bar moves the window one page up or down as you 
would expect.  What might be causing this behavior?

Thanks.

- Dushan Mitrovich